Principal Software Engineer (Front-End, React)

🔒 Confidential Employer
Posted 7 May 2026
LOCATION
Manchester
TYPE
Full-time
LEVEL
Director
SALARY
£85,000 / year
CATEGORY
Software Engineering
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

TypeScript React React Native AWS (Lambda, Step Functions) Kubernetes Microservices Architecture Domain Driven Design Test Driven Development

FULL DESCRIPTION

Principal Software Engineer (Front-End, React)

[Employer hidden — sign up to reveal] - Hybrid - Manchester, England - Full-time - £75,000-£85,000

Who we are

[Employer hidden — sign up to reveal] is an award-winning investment platform that puts its customers in control of their financial future. We’ve been helping investors for nearly 30 years. We’re now the UK’s number one flat-fee investment platform, with assets under administration approaching £75 billion and over 450,000 customers.

Purpose of the Role

The purpose of this role is to support the discovery, design, planning, architecture and development across one or more delivery teams acting as an expert in a defined technical domain. The principal engineer reports into the Senior Manager and works within areas of technical domain of responsibility.

Responsibilities

  • As part of the engineering team provide direct support for ensuring solutions for the team are architected in line with strategic alignment.
  • Ensure smooth transition of technical solutions and knowledge to the wider team.
  • Support discovery, architecture and design of new and more complex solutions.
  • Deliver changes which establish new patterns and architectural designs.
  • Support architecture decisions and solution design processes.
  • Enable culture of technical development and innovation.
  • Develop technical skills within the team through knowledge transfer.
  • Ensure architectural solutions align with control standards.
  • Support full development cycle including testing.
  • Proactively seek efficiencies around process, solutions and technology.
  • Perform role of 'code guardian' ensuring code quality.

Requirements

  • Extensive experience in a development environment for the technology area.
  • Proven experience working within a regulated environment.
  • Proven experience in Financial services or stockbroking.
  • Previous experience delivering change to business critical, highly available customer facing platforms.
  • Broad technical background with diverse technical integrations.
  • Experience across full project lifecycle from initiation to live support.
  • Experience with agile and waterfall methodologies.
  • Experience with DC based and cloud based DevOps managed environments.
  • Experience in high-pressure, time critical operating environment.
  • Experience supporting critical applications of a customer facing digital business.
  • Proven experience working autonomously and owning project deliverables.
  • Experience with cross-platform technology stacks in production.
  • Experience delivering change through Build, Dev, QA to Production using automation.

Technical Capability

  • Expert software development, software architecture and technical delivery skills in TypeScript / React / React Native Eco System.
  • TypeScript and JavaScript Development including Domain Driven Design, Test Driven Development and tech training presentation skills.
  • Expert Architecture and Design Skills.
  • Distributed Systems and architectural experience of microservices, event driven architectures and serverless.
  • AWS Cloud including step functions, lambda and general AWS architecture.
  • DevOps and containers environments including Kubernetes.
  • Client-side SPA frameworks, specifically React ecosystem for web and mobile-native (React DOM, React Native).
  • Server-side SSG and SSR (Next.js, etc).
  • Building accessible semantic HTML, SEO and SEF.
  • Kafka, Mongo, Elastic Search and Redis.
  • The whole Spring ecosystem including Spring Boot, Spring Cloud AWS, Spring Data, Spring Cloud Streams.

Benefits

  • Group Personal Pension Plan – 8% employer contribution and 4% employee contribution.
  • Life Assurance and Group Income Protection.
  • Private Medical Insurance – Provided by Bupa.
  • 25 Days Annual Leave, plus bank holidays.
  • Staff Discounts on our investment products.
  • Personal & Well-being Fund.
  • Retail Discounts.
  • Voluntary Flexible Benefits.

Please Note: We will do our utmost efforts to respond to all applicants. However, due to the high volume of applications we're currently receiving, if you haven't been contacted within 30 days of application, please consider unsuccessful. [Employer hidden — sign up to reveal] operates in accordance with the UK Equality Act 2010. We welcome applications from individuals of all backgrounds and are committed to treating all applicants fairly.

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